Marker die



Nov. 13, 1962 J. LQWELL r 3,063,371

MARKER DIE Filed March 9, 1956 FIG. 2.

United States Patent Ofifice 3,063,371 Patented Nov. 13, 192

3,063,371 MARKER DIE John 0. Lowell, Kirkwood, and Opel A. (Iarlson,Afiton,

Mm, assignors to Trim Dies, Inc., St. Louis, Mo., a corporation ofMissouri Filed Mar. 9, 1956, Ser. No. 570,520 4 Claims. (Cl. 101-368)This invention relates to marker dies, and more particularly to diessuch as are used in the manufacture of shoes for marking patterns in inkon leather and other shoe materials.

Among the several objects of the invention may be noted the provision ofa marker die of the class described adapted to make cleaner, sharper inklines on the material being marked; the provision of a die of the classdescribed which does not scar the material; the provision of a die ofthis class which is less subject to ink accumulation than prior dies,thereby requiring less cleaning and avoiding mark blurring due to inkaccumulation; and the provision of a die having the statedcharacteristics which is economical to manufacture. Other objects andfeatures will be in part apparent and in part pointed out hereinafter.

The invention accordingly comprises the constructions hereinafterdescribed, the scope of the invention being indicated in the followingclaims.

In the accompanying drawings, in which one of various possibleembodiments of the invention is illustrated,

FIG. 1 is a perspective of a marker die of this invention; and,

FIGS. 2 and 3 are enlarged sections taken on lines 22 and 3-3 of FIG. 1.

Corresponding reference characters indicate corresponding partsthroughout the several views of the drawings.

Referring to the drawings, a marker die of this invention is shown tocomprise a fiat rigid base 1. This base has a plurality of groovestherein designated 3. These grooves follow a pattern which it is desiredto mark in ink on leather or other material. A marking blade 5 isreceived on edge in each groove and projects from the base 1, meansbeing provided for holding the blade in the groove.

More particularly, the base 1 comprises a flat base plate member 7 and aflat face plate 9 secured to the base plate 7 by adhesive 11. The baseplate 7 and the face plate 9 may be made of any suitable metal, such asaluminum, or of plastic, or fibre board material. Any suitable adhesivemay be used, for example, the synthetic resin and latex types.

As illustrated in FIGS. 2 and 3, the grooves 3 are formed by cuttingslots in the face plate 9 prior to its assembly with the base plate 7.The slots may be cut by means of a jig saw, in which case holes such asindicated at 13 are drilled in the face plate for reception of the jigsaw blade to start the cutting.

Each blade 5 consists of a thin narrow strip of a sheet material, suchas vinyl plastic, fibre board, or of a nonferrous metal such as brass.Each blade is inserted edgewise into its respective slot, in which ithas a snug fit, and

has its edge in the slot in contact With the adhesive 11, the latterthereby serving as means for holding the blade in the slot. The faceplate may be one-sixteenth inch thick, and each blade three-sixteenthsinch wide, for example, so that each blade projects approximatelyoneeighth inch from the face plate. Each blade may be one thirty-secondinch thick, for example. When a metal face plate is used, it may bepeened as indicated at 15 to provide deformations on opposite sides ofeach slot for additional securement of each blade in its respectiveslot.

'It is preferred that a plastic, such as vinyl or cellulose acetate, beused for the blades 5, since this is ink-repellent and prevents undueaccumulation of ink on the blades, thereby avoiding blurring of lines,and avoiding any necessity for frequent cleaning. However, thin sheetmetal, such as brass, may be used. When the blades are cut from stripstock, it is preferred that they be cut so that the blade length istransverse to the strip stock.

In view of the above, it will be seen that the several objects of theinvention are achieved and other advantageous results attained.

As various changes could be made in the above constructions withoutdeparting from the scope of the invention, it is intended that allmatter contained in the above description or shown in the accompanyingdrawings shall be interpreted as illustrative and not in a limitingsense.

We claim:

1. A marker die comprising a body consisting of a base plate and a faceplate, the two plates having complementary faces adapted to be securedtogether; secured to the base a layer of adhesive extendingsubstantially throughout the interfacial area of said plates and bindingthem together, said face plate having a slot extending through it tomake a groove in the body from one side through to the layer ofadhesive, and a marking blade having a thickness approximately equal tothe width of the slot, the blade being received on edge in the slotextending through the slot into contact with the adhesive and being heldin the slot by said adhesive; the blade having a width greater than thethickness of the face plate, thereby projecting outward from the slot,and having a marking edge.

2. A marker die as set forth in claim 1 wherein the marking blade is aplastic blade.

3. A marker die as set forth in claim 1 wherein the face plate is ametal plate and has deformations at the slot for additional securementof the blade in the slot.

4. A marker die as set forth in claim 3 wherein the blade is anink-repellent plastic blade.

References (Iited in the file of this patent UNITED STATES PATENTS1,135,145 Stevenson Apr. 13, 1915 1,646,413 Lossman Oct. 25, 19272,057,805 Valiquette Oct. 20, 1936 2,108,822 Lippincott Feb. 22, 19382,458,867 Messersmith Jan. 11, 1949 FOREIGN PATENTS 981,639 France Jan.17, 1951

